Identifikacija parametrov enosmernega motorja za namene vodenja

diplomsko delo

Enida Suljić (Author), Rajko Svečko (Mentor)

Abstract

Enosmerni motorji so uporabljeni na različnih področjih in v večini primerov težimo k izvedbi kvalitetne in zanesljive regulacije hitrosti vrtenja, toka oz. navora ali pozicije. Za načrtovanje zaprto-zančnega vodenja ene izmed prej naštetih veličin potrebujemo natančne parametre enosmernega motorja. Parametre motorja je možno določiti preko linearnega ali nelinearnega matematičnega modela, ki dokaj precizno opisuje dinamične lastnosti celotnega vodenega sistema, kar je tudi predmet predlaganega diplomskega dela. V sklopu te diplomske naloge sta uporabljeni dve metodi za pridobitev parametrov. Kot linearni postopek optimizacije je uporabljena metoda identifikacije z metodo najmanjših kvadratov v okvirju orodja Ident Toolbox znotraj Matlaba. Kot nelinearni postopek pa metoda z uporabo funkcije »fmincon« v okvirju optimizacijskega orodja Optimization Tool tudi znotraj Matlaba. Glavni cilj je pridobitev vrednosti neznanih parametrov enosmernega motorja primerjava med obema metodama: uporabnost in primernost obeh, prednosti in slabosti ter natančnost končnih rezultatov.

Keywords

identifikacija;metoda najmanjših kvadratov;fmincon;enosmerni motorji;parametri;

Data

Language:	Slovenian
Year of publishing:	2015
Typology:	2.11 - Undergraduate Thesis
Organization:	UM FERI - Faculty of Electrical Engineering and Computer Science
Publisher:	E. Suljić
UDC:	621.313.2:004.422.86(043.2)
COBISS:	19079702
Views:	1177
Downloads:	177
Average score:	0 (0 votes)
Metadata:

Other data

Secondary language:	English
Secondary title:	PARAMETER IDENTIFICATION OF A DC MOTOR FOR THE CONTROL PURPOSE
Secondary abstract:	DC motors are used in various fields and in most cases we tend to design a high-quality and reliable speed, flow (torque) or the position control of a DC motor. For efficient design of the feedback control system for one of the above mentioned variables we need to know parameters of the DC motor. Motor parameters can be determined via a linear or non-linear mathematical model, which describes precise dynamic characteristics of the entire controlled system, which is also the subject of the proposed diploma work. Within this thesis, two methods were used to obtain parameters. As a linear optimization technique was used the method of least squares in the frame of Matlab - Ident Toolbox. As a non-linear process optimization was used "fmincon" function in the framework of the Matlab - Optimization Toolbox. The main objective is getting the values of the unknown parameters of a DC motor, and a comparison between these two methods: the usefulness and appropriateness of both methods, the advantages and weaknesses and the accuracy of the final results.
Secondary keywords:	identification;least equares method;DC motors;parameters;
URN:	URN:SI:UM:
Type (COBISS):	Bachelor thesis/paper
Thesis comment:	Univ. v Mariboru, Fak. za elektrotehniko, računalništvo in informatiko, Elektrotehnika
Pages:	VI, 44 f.
ID:	8776771